How to Fix Ndis.sys Blue Screen of Death in Windows 10/11?

BSOD, or Blue Screen of Death, is a critical error Windows cannot resolve without crashing. While most users ignore random BSODs, frequent system crashes may indicate a serious software or hardware issue. The good thing is that every Blue Screen of Death has an error or stop code that provides clues to what is going wrong. The bad thing is that deciphering those stop codes is a challenging procedure. This article will help you fix the ndis.sys blue screen of death and understand better what causes it.

Besides the ndis.sys, the blue screen of death may contain an additional message with the following: DRIVER_IRQL_NOT_LESS_OR_EQUAL (ndis.sys). That does not say much even to experienced users, so they need to look for how to fix ndis.sys blue screen of death in Windows 10 and 11.

What is ndis.sys?

Ndis.sys is a network driver for modern Windows versions (11, 10, 8.1, 8, and 7). Ndis stands for Network Driver Interface Specification. Frequent blue screens of death with that error code may indicate your system has problems with NAT (network address translation) or physical issues with the hardware responsible for accessing the internet.

How to fix ndis.sys blue screen of death?

Unfortunately, no single and universal solution can fix the ndis.sys error. You must try several methods to pinpoint the issue and analyze what works and what does not. Here is what you can do:

  • Restart your computer. A random BSOD should not worry you too much unless it happens too often. Restart your computer and continue working with it as usual.
  • Disable proxies and VPN connections. Troubleshooting internet access issues should never involve VPN or proxy connections.
  • Try changing the connection type. See if the ndis.sys error happens when you switch to wired (Ethernet) or wireless (Wi-Fi) connection. This step will help you understand what type of network driver you should troubleshoot since Ethernet and Wi-Fi drivers are different.
  • Undo a driver update. Launch Device Manager and expand the Network adapters section. Find your Ethernet and Wi-Fi adapters and right-click them and select Properties. Go to the Driver tab and click Roll back driver if the option is available. ndis sys
  • Check for driver updates. Go to your laptop/tablet/motherboard manufacturer’s website and see if there is a newer network driver. Also, check whether it has known issues or bugs. It is also necessary to install only the official drivers from your manufacturer’s website. Never use driver packs, apps, or third-party websites for managing drivers.
  • Check Windows Health. Microsoft keeps track of known issues in its operating system. The company releases detailed explanations and possible workarounds once it detects a serious problem. The steps provided by Microsoft might help you fix the ndis.sys blue screen of death in Windows 10 and 11.
  • Undo a Windows Update. Botched Windows updates are among the most common causes of blue screens of death and other software nastiness. If the problem appeared after installing an update, go to Settings > Update & security > Windows Update > Update History > Uninstall update to remove one of the recent patches. ndis blue screen
  • Use a restore point. Roll back your system to a previous restore point if available.
  • Check Virtual Network Drivers. Installing virtualization software, such as VMware Player or Virtual Box, places a bunch of virtual network drivers. They might cause issues in specific cases, so back up your virtual machines and uninstall your virtualization app to see if it helps fix the ndis.sys blue screen of death with the DRIVER_IRQL_NOT_LESS_OR_EQUAL error.
  • Uninstall Windows if nothing helps. Remember to back up important data and apps before proceeding.
  • Hardware issues. Unfortunately, not every user can troubleshoot their computer for hardware issues. If possible, remove your PC cover and see if the network card has signs of physical damage, burn marks, traces of liquids, or other problems. If you use a discrete network card inside your computer, check if it is correctly seated in a PCIe slot. This also applies to network cards in laptops and tablets.

If you know other methods to fix the ndis.sys error, let us know about them in the comments.

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